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Iron overload in myelodysplastic syndromes (MDS).

Iron overload in myelodysplastic syndromes (MDS). Int J Hematol. 2017 Nov 25;: Authors: Gattermann N Abstract Iron overload (IOL) starts to develop in MDS patients before they become transfusion-dependent because ineffective erythropoiesis suppresses hepcidin production in the liver and thus leads to unrestrained intestinal iron uptake. However, the most important cause of iron overload in MDS is chronic transfusion therapy. While transfusion dependency by itself is a negative prognostic factor reflecting poor bone marrow function, the ensuing transfusional iron overload has an additional dose-dependent negative impact on the survival of patients with lower risk MDS. Cardiac dysfunction appears to be important in this context, as a consequence of chronic anemia, age-related cardiac comorbidity, and iron overload. Another potential problem is iron-related endothelial dysfunction. There is some evidence that with increasing age, high circulating iron levels worsen the atherosclerotic phenotype. Transfusional IOL also appears to aggravate bone marrow failure in MDS, through unfavorable effects on mesenchymal stromal cells as well a hematopoietic cells, particularly erythroid precursors. Patient series and clinical trials have shown that the iron chelators deferoxamine and deferasirox can improve hematopoiesis in a minority of transfusion-dependent patients. Analyses of registry data suggest that iron chelation provides a survival benefit for patients with M...
Source: International Journal of Hematology - Category: Hematology Authors: Tags: Int J Hematol Source Type: research

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CONCLUSION: A high prevalence of iron overload in this patient population in Latin American countries indicates that a better diagnosis and management of iron overload is required in these countries. PMID: 29663858 [PubMed - as supplied by publisher]
Source: Hematology - Category: Hematology Tags: Hematology Source Type: research
AbstractThe myelodysplastic syndromes (MDSs) are clonal hematopoietic stem cell disorders. The International Prognostic Score System (IPSS) groups MDS in lower-risk (IPSS low and intermediate-1) and higher-risk disease (IPSS intermediate-2 and high). AML transformation is the main concern in higher-risk MDS, while anemia and transfusion dependency represent the major issues for low-risk MDS patients. Improving erythropoiesis, and eliminating fatigue and symptoms, is the main therapeutic goal for low-risk MDS patients. Around 50% of MDS patients present with anemia with an Hb level
Source: Medical Oncology - Category: Cancer & Oncology Source Type: research
We examined the possible diagnostic and prognostic values of exosomal microRNAs in two human bone marrow failure diseases, aplastic anemia and myelodysplastic syndromes. After screening of 372 microRNAs in a discovery set (n=42) of plasma exosome samples, we constructed a custom microRNA PCR plate, including 42 microRNAs, for validation in a larger cohort (n=99), and we identified 25 differentially expressed exosomal microRNAs uniquely or frequently present in aplastic anemia and/or myelodysplastic syndromes. These microRNAs could be related to intracellular functions, such as metabolism, cell survival, and proliferation. ...
Source: Haematologica - Category: Hematology Authors: Tags: Haematologica Source Type: research
We report a case of delayed diagnosis of SDS in a family with another child with aplastic anemia, and review reported cases of SDS in Asia. This highlights the gap in identifying inherited bone marrow failure syndromes in adults with hematologic malignancies.
Source: Leukemia Research Reports - Category: Hematology Source Type: research
Rationale: The current therapy for elderly patients with high-risk myelodysplastic syndromes (MDSs) remains unsatisfactory. Decitabine, which has been approved to treat MDS, cannot eliminate malignant clones of MDS. Patient concerns: A 68-year-old woman presented with multiple divergent bleeding points in the subcutaneous tissue of the limb. Two years earlier, she had been diagnosed with invasive ductal carcinoma of the left breast and had undergone left modified radical mastectomy and local radiation therapy. Diagnoses: The patient was diagnosed with MDS refractory anemia with excess of blast II and was classified...
Source: Medicine - Category: Internal Medicine Tags: Research Article: Clinical Case Report Source Type: research
Pediatric myelodysplastic syndromes (MDSs) are a heterogeneous group of clonal disorders with an annual incidence of 1 to 4 cases per million, accounting for less than 5% of childhood hematologic malignancies. MDSs in children often occur in the context of inherited bone marrow failure syndromes, which represent a peculiarity of myelodysplasia diagnosed in pediatric patients. Moreover, germ line syndromes predisposing individuals to develop MDS or acute myeloid leukemia have recently been identified, such as those caused by mutations in GATA2, ETV6, SRP72, and SAMD9/SAMD9-L. Refractory cytopenia of childhood (RCC) is the m...
Source: Blood - Category: Hematology Authors: Tags: Pediatric Hematology, Transplantation, How I Treat, Free Research Articles, Myeloid Neoplasia Source Type: research
Source: Blood - Category: Hematology Authors: Tags: Free Research Articles, BloodWork, Phagocytes, Granulocytes, and Myelopoiesis, Red Cells, Iron, and Erythropoiesis BLOOD WORK Source Type: research
Myelodysplastic syndromes (MDS) are a group of heterogeneous oligoclonal stem cell disorders characterized by peripheral cytopenia and a risk of transformation into acute myeloid leukemia (AML). Anemia is the most frequent symptom and reflects the impaired erythroid cell maturation.
Source: Leukemia Research - Category: Hematology Authors: Tags: Research paper Source Type: research
ConclusionsQHP combined with BPYS could effectively treat MDS-RCMD patients through hematologic improvement (HI-N, HI-P or HI-E) and PLT and RBC transfusion independence due to the demethylation, thereby providing another choice for the treatment of patients with MDS-RCMD.
Source: Chinese Journal of Integrative Medicine - Category: Internal Medicine Source Type: research
Conclusion: The prevalence of PHD after PRRT with 177Lu-DOTATATE was 4% in our patient population. The median time at which PHD developed was 41 mo after the first PRRT cycle. The relative risk for developing a hematopoietic neoplasm was 2.7. No risk factors were found for the development of PHD in GEP NET patients.
Source: Journal of Nuclear Medicine - Category: Nuclear Medicine Authors: Tags: Clinical Source Type: research
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